Error(s) in re-building vignettes:
--- re-building ‘credible_intervals.Rmd’ using rmarkdown
dyld: lazy symbol binding failed: Symbol not found: ____chkstk_darwin
  Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libSystem.B.dylib

dyld: Symbol not found: ____chkstk_darwin
  Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libSystem.B.dylib

Error: processing vignette 'credible_intervals.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘credible_intervals.Rmd’

--- re-building ‘network_plot_1.Rmd’ using rmarkdown
dyld: lazy symbol binding failed: Symbol not found: ____chkstk_darwin
  Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libSystem.B.dylib

dyld: Symbol not found: ____chkstk_darwin
  Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libSystem.B.dylib

Error: processing vignette 'network_plot_1.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘network_plot_1.Rmd’

--- re-building ‘ppc1.Rmd’ using rmarkdown
dyld: lazy symbol binding failed: Symbol not found: ____chkstk_darwin
  Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libSystem.B.dylib

dyld: Symbol not found: ____chkstk_darwin
  Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libSystem.B.dylib

Error: processing vignette 'ppc1.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘ppc1.Rmd’

--- re-building ‘predict.Rmd’ using rmarkdown
Picking joint bandwidth of 0.00205
Picking joint bandwidth of 0.0222
Warning in as_grob.default(plot) :
  Cannot convert object of class character into a grob.
Warning in as_grob.default(plot) :
  Cannot convert object of class character into a grob.
Picking joint bandwidth of 0.00205
Picking joint bandwidth of 0.0222
dyld: lazy symbol binding failed: Symbol not found: ____chkstk_darwin
  Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libSystem.B.dylib

dyld: Symbol not found: ____chkstk_darwin
  Referenced from: /usr/local/bin/pandoc (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libSystem.B.dylib

Error: processing vignette 'predict.Rmd' failed with diagnostics:
pandoc document conversion failed with error 6
--- failed re-building ‘predict.Rmd’

SUMMARY: processing the following files failed:
  ‘credible_intervals.Rmd’ ‘network_plot_1.Rmd’ ‘ppc1.Rmd’
  ‘predict.Rmd’

Error: Vignette re-building failed.
Execution halted